How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 2/23100.0*Chance in playoffs100.0*Average seed
Philadelphia Bl 55 Indianapolis Ra 27 -13.4
-0.8
Cleveland Crusa 37.8 Reagan's Whaler 52.8 -2.0
Charlestown Chi 33.4 Houston Aeros 37.6 -1.8
-0.1
New York Knights 60.4 Denver Spurs 38 +1.4
+0.1
Chicago Cougars 3.8 Quebec Nordiques 50.6 -1.2
Toronto Toros 45.8 Cincinnati Stin 41.2 +1.2
+0.1
Winnipeg Jets 31.8 Phoenix Roadrun 63 +0.1
Week of 3/2100.0*Chance in playoffs100.0*Average seed
Indianapolis Ra 48.8 Winnipeg Jets 29 +5.1
+0.6
Houston Aeros 54.4 New York Knights 44.4 -1.4
-0.1
Denver Spurs 34.4 Cleveland Crusa 51.6 +1.3
+0.1
Cincinnati Stin 47.8 Michigan Stags 37.2 -1.3
-0.1
Quebec Nordiques 54.6 Charlestown Chi 46 -1.2
Reagan's Whaler 40.2 Chicago Cougars 42.4 -0.5
Week of 3/9100.0*Chance in playoffs100.0*Average seed
Reagan's Whaler 35.4 Alberta Oilers 48.6 +1.5
+0.1
Denver Spurs 66.6 Cincinnati Stin 57 +1.4
-0.2
Quebec Nordiques 58 Indianapolis Ra 36.8 Out
-0.4
Points
Chance Will Make Playoffs